Question
A circular rug has a radius of 3 ft. What is the circumference of the rug? Use 3.14 for Pi.
9.32 ft
9.42 ft
18.64 ft
18.84 ft
9.32 ft
9.42 ft
18.64 ft
18.84 ft
Answers
GPT-4o mini
To find the circumference of a circular rug, you can use the formula:
\[
C = 2 \pi r
\]
where \( C \) is the circumference, \( \pi \) (Pi) is approximately 3.14, and \( r \) is the radius of the circle. Given that the radius \( r \) is 3 ft, we can substitute the values into the formula:
\[
C = 2 \times 3.14 \times 3
\]
Calculating this step-by-step:
1. Multiply \( 2 \times 3.14 = 6.28 \)
2. Then multiply \( 6.28 \times 3 = 18.84 \)
Thus, the circumference of the rug is:
\[
\text{Circumference} = 18.84 \text{ ft}
\]
So the correct answer is **18.84 ft**.
\[
C = 2 \pi r
\]
where \( C \) is the circumference, \( \pi \) (Pi) is approximately 3.14, and \( r \) is the radius of the circle. Given that the radius \( r \) is 3 ft, we can substitute the values into the formula:
\[
C = 2 \times 3.14 \times 3
\]
Calculating this step-by-step:
1. Multiply \( 2 \times 3.14 = 6.28 \)
2. Then multiply \( 6.28 \times 3 = 18.84 \)
Thus, the circumference of the rug is:
\[
\text{Circumference} = 18.84 \text{ ft}
\]
So the correct answer is **18.84 ft**.